21 lines
901 B
Diff
21 lines
901 B
Diff
diff --git a/sysdeps/linux-gnu/arm/trace.c b/sysdeps/linux-gnu/arm/trace.c
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index f974d1f..8526bf1 100644
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--- a/sysdeps/linux-gnu/arm/trace.c
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+++ b/sysdeps/linux-gnu/arm/trace.c
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@@ -77,6 +77,15 @@ syscall_p(struct process *proc, int status, int *sysnum)
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unsigned insn = ptrace(PTRACE_PEEKTEXT, proc->pid,
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(void *)pc, 0);
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+#if defined(__ARMEB__) && defined(__ARM_ARCH_7A__)
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+ /* We running big endian arm on ARMv7: instructions are
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+ * in little endian form so we need to byteswap it. Note
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+ * on older ARM like V5 Xscale code is in big endian form
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+ * byte swap is not needed in this case. I.e be8 vs be32.
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+ */
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+ insn = __builtin_bswap32(insn);
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+#endif /* __ARMEB__ && __ARM_ARCH_7A__ */
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+
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if (insn == 0xef000000 || insn == 0x0f000000
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|| (insn & 0xffff0000) == 0xdf000000) {
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/* EABI syscall */
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